Commit f5f870c0 authored by Jan Djärv's avatar Jan Djärv
Browse files

* macmenu.c (menu_quit_handler, install_menu_quit_handler): New

 functions for popping down menus on C-g.
 (set_frame_menubar, mac_menu_show): Call install_menu_quit_handler.
parent 1b0fc0ce
......@@ -1356,6 +1356,68 @@ update_submenu_strings (first_wv)
}
/* Event handler function that pops down a menu on C-g. We can only pop
down menus if CancelMenuTracking is present (OSX 10.3 or later). */
#ifdef HAVE_CANCELMENUTRACKING
static pascal OSStatus
menu_quit_handler (nextHandler, theEvent, userData)
EventHandlerCallRef nextHandler;
EventRef theEvent;
void* userData;
{
UInt32 keyCode;
UInt32 keyModifiers;
extern int mac_quit_char_modifiers;
extern int mac_quit_char_keycode;
GetEventParameter (theEvent, kEventParamKeyCode,
typeUInt32, NULL, sizeof(UInt32), NULL, &keyCode);
GetEventParameter (theEvent, kEventParamKeyModifiers,
typeUInt32, NULL, sizeof(UInt32),
NULL, &keyModifiers);
if (keyCode == mac_quit_char_keycode
&& keyModifiers == mac_quit_char_modifiers)
{
MenuRef menu = userData != 0
? (MenuRef)userData : AcquireRootMenu ();
CancelMenuTracking (menu, true, 0);
if (!userData) ReleaseMenu (menu);
return noErr;
}
return CallNextEventHandler (nextHandler, theEvent);
}
#endif /* HAVE_CANCELMENUTRACKING */
/* Add event handler for MENU_HANDLE so we can detect C-g.
If MENU_HANDLE is NULL, install handler for all menus in the menu bar.
If CancelMenuTracking isn't available, do nothing. */
static void
install_menu_quit_handler (MenuHandle menu_handle)
{
#ifdef HAVE_CANCELMENUTRACKING
EventHandlerUPP handler = NewEventHandlerUPP(menu_quit_handler);
UInt32 numTypes = 1;
EventTypeSpec typesList[] = { { kEventClassKeyboard, kEventRawKeyDown } };
int i = MIN_MENU_ID;
MenuHandle menu = menu_handle ? menu_handle : GetMenuHandle (i);
while (menu != NULL)
{
InstallMenuEventHandler (menu, handler, GetEventTypeCount (typesList),
typesList, menu_handle, NULL);
if (menu_handle) break;
menu = GetMenuHandle (++i);
}
DisposeEventHandlerUPP (handler);
#endif /* HAVE_CANCELMENUTRACKING */
}
/* Set the contents of the menubar widgets of frame F.
The argument FIRST_TIME is currently ignored;
it is set the first time this is called, from initialize_frame_menubar. */
......@@ -1575,6 +1637,8 @@ set_frame_menubar (f, first_time, deep_p)
DrawMenuBar ();
/* Add event handler so we can detect C-g. */
install_menu_quit_handler (NULL);
free_menubar_widget_value_tree (first_wv);
UNBLOCK_INPUT;
......@@ -1606,7 +1670,43 @@ free_frame_menubar (f)
}
/* mac_menu_show actually displays a menu using the panes and items in
static Lisp_Object
pop_down_menu (arg)
Lisp_Object arg;
{
struct Lisp_Save_Value *p1 = XSAVE_VALUE (Fcar (arg));
struct Lisp_Save_Value *p2 = XSAVE_VALUE (Fcdr (arg));
FRAME_PTR f = p1->pointer;
MenuHandle *menu = p2->pointer;
BLOCK_INPUT;
/* Must reset this manually because the button release event is not
passed to Emacs event loop. */
FRAME_MAC_DISPLAY_INFO (f)->grabbed = 0;
/* delete all menus */
{
int i = MIN_POPUP_SUBMENU_ID;
MenuHandle submenu = GetMenuHandle (i);
while (submenu != NULL)
{
DeleteMenu (i);
DisposeMenu (submenu);
submenu = GetMenuHandle (++i);
}
}
DeleteMenu (POPUP_SUBMENU_ID);
DisposeMenu (*menu);
UNBLOCK_INPUT;
return Qnil;
}
/* Mac_menu_show actually displays a menu using the panes and items in
menu_items and returns the value selected from it; we assume input
is blocked by the caller. */
......@@ -1644,6 +1744,7 @@ mac_menu_show (f, x, y, for_click, keymaps, title, error)
= (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object));
int submenu_depth = 0;
int first_pane;
int specpdl_count = SPECPDL_INDEX ();
*error = NULL;
......@@ -1817,7 +1918,7 @@ mac_menu_show (f, x, y, for_click, keymaps, title, error)
title = ENCODE_MENU_STRING (title);
#endif
wv_title->name = (char *) SDATA (title);
wv_title->enabled = TRUE;
wv_title->enabled = FALSE;
wv_title->title = TRUE;
wv_title->button_type = BUTTON_TYPE_NONE;
wv_title->help = Qnil;
......@@ -1830,6 +1931,10 @@ mac_menu_show (f, x, y, for_click, keymaps, title, error)
submenu_id = MIN_POPUP_SUBMENU_ID;
fill_submenu (menu, first_wv->contents);
/* Free the widget_value objects we used to specify the
contents. */
free_menubar_widget_value_tree (first_wv);
/* Adjust coordinates to be root-window-relative. */
pos.h = x;
pos.v = y;
......@@ -1844,11 +1949,18 @@ mac_menu_show (f, x, y, for_click, keymaps, title, error)
InsertMenu (menu, -1);
record_unwind_protect (pop_down_menu,
Fcons (make_save_value (f, 0),
make_save_value (&menu, 0)));
/* Add event handler so we can detect C-g. */
install_menu_quit_handler (menu);
/* Display the menu. */
menu_item_choice = PopUpMenuSelect (menu, pos.v, pos.h, 0);
menu_item_selection = LoWord (menu_item_choice);
/* Get the refcon to find the correct item*/
/* Get the refcon to find the correct item */
if (menu_item_selection)
{
MenuHandle sel_menu = GetMenuHandle (HiWord (menu_item_choice));
......@@ -1856,35 +1968,10 @@ mac_menu_show (f, x, y, for_click, keymaps, title, error)
GetMenuItemRefCon (sel_menu, menu_item_selection, &refcon);
}
}
#if 0
/* Clean up extraneous mouse events which might have been generated
during the call. */
discard_mouse_events ();
#endif
/* Must reset this manually because the button release event is not
passed to Emacs event loop. */
FRAME_MAC_DISPLAY_INFO (f)->grabbed = 0;
/* Free the widget_value objects we used to specify the
contents. */
free_menubar_widget_value_tree (first_wv);
/* delete all menus */
{
int i = MIN_POPUP_SUBMENU_ID;
MenuHandle submenu = GetMenuHandle (i);
while (submenu != NULL)
{
DeleteMenu (i);
DisposeMenu (submenu);
submenu = GetMenuHandle (++i);
}
}
DeleteMenu (POPUP_SUBMENU_ID);
DisposeMenu (menu);
else if (! for_click)
/* Make "Cancel" equivalent to C-g unless this menu was popped up by
a mouse press. */
Fsignal (Qquit, Qnil);
/* Find the selected item, and its pane, to return
the proper value. */
......@@ -1944,6 +2031,8 @@ mac_menu_show (f, x, y, for_click, keymaps, title, error)
/* Make "Cancel" equivalent to C-g. */
Fsignal (Qquit, Qnil);
unbind_to (specpdl_count, Qnil);
return Qnil;
}
......
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